Contents And Changes Of Main Fatty Acids In The Linseed Oil,
2016
Shanxi Agricultural University in Food Science and Engineering College, Taigu, Shanxi 030801, China
Contents And Changes Of Main Fatty Acids In The Linseed Oil, Lu Yinjie, Hao Liping, Guo Yuxuan
Food and Machinery
The composition and contents of the main fatty acids were analyzed by gas chromatography (GC) in the linseed oil. The changes of the main fatty acids and peroxide value in the linseed oil during the storage were analysed by ccelerated oxidation method. The results showed that five kinds of main fatty acids are included in linseed oil, namely linolenic acid, linoleic acid, oleic acid, palmitic acid and stearic acid, and 53.6% of them was linolenic acid. With the extension of storage time, the contents of every kind of unsaturated fatty acids in linseed oil decreased, showing a linear relevance to …
Research On Effects Of Chicken Eggshell Dark Spots On Chicken Egg Storage,
2016
College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
Research On Effects Of Chicken Eggshell Dark Spots On Chicken Egg Storage, Zhang Mingrong, Ye Jinsong, Zhang Zili, Li Xinyang, Wang Chengcheng, Cai Yunqiong
Food and Machinery
The egg shells with different dark spots coverage (0%, 10%, 30%, 60%) were selected to study the influence of dark spots on the eggs’ storage properties. The quality indexes of eggs including freshness indexes (weight loss, relative density, yolk index, egg white pH value, Haugh unit, etc.) and microbial indexes(total bacterial counts, E. coli, mold, Salmonella, etc.)were analysed during storage. The results showed that the rate of freshness declined and microbial growth of dark spots eggs were faster than those normal. Morover, with the increase of egg shell dark spots coverage, the freshness declining and the microbe growing became faster …
Study On Mutagenic And Anti-Mutafenic Effect Of Korean Soybean Paste With Different Storage Period,
2016
School of Medical Sciens, Yanbian University, Yanji, Jilin 133002, China; School of Public Health, Jilin Medical University, Jilin, Jilin 132013, China
Study On Mutagenic And Anti-Mutafenic Effect Of Korean Soybean Paste With Different Storage Period, Li Xue, Shi Dejun, Huang Baishen, Xu Bin, Cui Chengbi
Food and Machinery
In order to explore the mutagenic and anti-mutagenic effect on the different storage periods of Korean soybean paste. In this study, on the basis of detecting mutagenicity effect by modified Ames test, and detecting the anti-mutagenic effects of the Korean soybean paste samples with different storage time have on Mouse bone marrow micronucleus test. Result: the mutagenicity of Korean soybean paste were negative; Anti-mutagenic effect were enhanced with the extension of storage time and the concentration, the anti-mutagenic effect of TA100 and TA98 strains induced by Trp-p-1 and MNNG reached the maximum value at 12 months of storage. And there …
Comparative Analysis Of Storage Characters On Main Breeds Of Celery In Beijing,
2016
Department of Food Science and Engineering, Beijing University of Agriculture, Beijing 102206, China
Comparative Analysis Of Storage Characters On Main Breeds Of Celery In Beijing, Guo Zhenlong, Chen Xiangning, Xu Li, Zhang Qi, Zhao Ruixue
Food and Machinery
Eleven kinds of celery in Beijing were used. Six Indices including water content, chlorophyll content, respiration intensity, relative conductivity, cellulose content and lignin content of celery were measured. The results showed that, during the storage period, water content in Japanese Small Parsley and White Celery decreased sharply; chlorophyll content in Majiagou, Emperor and Jade Emperor maintained at a high level, but it is low in Purple Celery and White Celery, while the lowest level appeared in Jade Emperor and White Celery; White Celery entered the stage of senescence in the 1st day with the respiratory top; White Celery and Purple …
Effect Of Ventilation Cooling Technology By Cover Surface And Guiding Flow On Paddy Quality During Storage,
2016
College of Food Science and Engineering, Center South University of Forestry and Technology, Changsha, Hunan 410004, China; National Engineering Laboratory for Rice and By-product Deep Processing, Changsha, Hunan 410004, China
Effect Of Ventilation Cooling Technology By Cover Surface And Guiding Flow On Paddy Quality During Storage, Wu Xiaojuan, Wu Wei, Gao Chongming, Chen Liang
Food and Machinery
Ventilation cooling technology by cover surface and guiding flow was used to store paddy, and effects of storage on moisture content, yellow-colored rice, fatty acid value, tasting score value of milled rice, husked rice yield, head rice yield of paddy were investigated respectively. Compared to conventional storage, the results indicated that the application of ventilation cooling technology by cover surface and guiding flow could decrease moisture content loss of paddy as 0.5%. Moreover, the content of yellow-colored rice was found remaining at around 0.1%, lower than that of the control storehouse as 0.8%, and fatty acid value was 19.2 mg …
Effect Of Storage Conditions On Nutritional Quality Of Sunflower Seeds,
2016
Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi 330200, China
Effect Of Storage Conditions On Nutritional Quality Of Sunflower Seeds, Zhu Shuilan, Feng Jianxiong, Liu Guangxian, Min Hua, Zhou Jinying
Food and Machinery
No abstract provided.
Effect Of Packing Materials And Methods On Quality Of Duck Meat During Storage,
2016
Research Institute of Agricultural Products Processing and Nuclear-Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430064, China; Agricultural Products Processing Subcenter of Hubei Agricultural Science & Technology Innovatio
Effect Of Packing Materials And Methods On Quality Of Duck Meat During Storage, Wu Wenjin, Wang Lan, Ding Anzi, Xiong Guangquan
Food and Machinery
The study was to investigate the effect of packing materials (PVC, composite aluminum foil bag) and methods (generally packing, vacuum packing) on the quality of duck meat during the storage at 4 ℃. The results showed that the duck meat packed with the same method, which packed with the aluminum foil bag material have maintained good color and water holding capacity. The value of the total volatile basic nitrogen was low, and the value of pH was stability. The quality of duck meat packed with the aluminum foil bag material was better than packed with PVC. The duck meat packed …
Study Of Storage Conditions On Monascus Purpureus Spore Viability,
2016
Academy of Life Science and Agriculture, Qiannan Normal College for Nationalities, Duyun, Guizhou 558000, China
Study Of Storage Conditions On Monascus Purpureus Spore Viability, Li Yongbo, Li Jing, Song Lisha, Xiao Guoxue, Ma Yuan
Food and Machinery
Using the spore germination rate as evaluation index, study the effects of light, storage temperature, oxidation reduction potential, metal ions and low concentration of lactic acid on Monascus purpureus congjiang var. spore viability. The results showed that at the 2 ℃low-temperature storage, darkness, adding 400 μg/mL of VC, adding 1% lactic acid were beneficial to the Monascus purpureus congjiang var. spore viability. With the addition of 400 μg/mL VC had the highest activity, spore germination rate reached 74.22%; treatments of light, ultraviolet rays, 0.1% H2O2, Monascus purpureus congjiang var. spore germination rate were …
Structure-Activity Relationship Of Nf-Κb Inhibition From Resveratrol Analogues,
2016
School of Chemical Engineering, Xuzhou College of Industrial Technology, Xuzhou, Jiangsu 221140, China
Structure-Activity Relationship Of Nf-Κb Inhibition From Resveratrol Analogues, Liu Lianxin, Liu Yu, He Weiping
Food and Machinery
Based on the NF-κB inhibition data provided by literature, the descriptors of 17 resveratrol analogues were obtained though the iterative method for optimization, according the approach of quantifying substituent and substituted positions. The Qantitative Structure-activity Relationship model was built up by using multiple linear regression analysis. The results showed that the sequence of substituents to inhibit the activation of the oncogenic transcription factor NF-κB was -OH ＞-Naphthyl ＞-CF3 ＞-MeO ＞-Me2N ＞-F, and the NF-κB inhibition of 3th substituted position was greater than the one of 4th substituted position, and the inhibition of 4th substituted position was greater than the one …
Extraction And Purification Of Polysaccharide From Spirulina And Its Anti-Colonic Adenocarcinoma Capacity,
2016
College of Food Science, South China of Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Province Engineering Research Center for Bioactive Natural Products, Guangzhou, Guangdong 510642, China
Extraction And Purification Of Polysaccharide From Spirulina And Its Anti-Colonic Adenocarcinoma Capacity, Wang Qun, Chen Shike, Li Haoyao, Chen Xuexiang, Cao Yong
Food and Machinery
The polysaccharide was from Spirulina powder by the means of hot water extraction after repeated freezing-thawing cycles and ultrasonic treatment. The effects of lasted time and extraction temperature and time, ratio of solid to liquid and times of extraction on polysaccharide yield were studied by single factor and orthogonal experiments. PSP was separated into PSP-3 by membrane separation techniques, and it was investigated by MTT assay on colon adenocarcinoma cells (Caco-2 cell growth inhibition) to determine the optimal concentration. Finally, the molecular of PSP-3 was determined by gel permeation chromatography (GPC). Experiment results showed that the optimum conditions were as …
Effects Of Blueberry Anthocyanin On Organ Tissue Antioxidant Defense Function In Experimental Diabetic Mice,
2016
Dalian Nationalities University, Dalian, Liaoning 116600, China
Effects Of Blueberry Anthocyanin On Organ Tissue Antioxidant Defense Function In Experimental Diabetic Mice, Wei Yanshuang, Tian Mixia, Zhang Meijiao, Yuan Fenghao
Food and Machinery
To study the effects of blueberry anthocyanin on organ tissue antioxidant activity in experimental diabetic mice. The instreptozotocin-induced diabetic mice were divided into different groups. Diabetic mice were administered for 4 weeks, Malondialdehyde content, the activity of superoxide dismutase and glutathione peroxides, total antioxidant capacity, inhibiting ability of hydroxyl radicals on organ tissue were determined. The experimental data showed that model with blueberry anthocyanin group compared with model control, the content of Malondialdehyde were significantly reduced (P<0.05) while glutathione peroxidase，superoxide dismutase and total antioxidant capacity, inhibiting hydroxyl free radical ability increased markedly in the tissue of all organ (P<0.05). It shows that Blueberry anthocyanin can enhance the cell tissue antioxidant activity.
Effects Of Drying Methods On Physiochemical Properties And Antioxidant Activities Of Polysaccharides From Roots Of Arctium Lappa L.,
2016
College of Science, Sichuan Agricultural University, Ya’an, Sichuan 625014, China
Effects Of Drying Methods On Physiochemical Properties And Antioxidant Activities Of Polysaccharides From Roots Of Arctium Lappa L., Yu Jun, Zhang Li, Li Yabo, Jia Chunhong
Food and Machinery
Using the roots of Arctium lappa L. as materials to extract polysaccharides from the roots of Arctium lappa L. The influences of different drying methods were studied, including hot air drying, vacuum drying and freeze drying, on the physiochemical properties and antioxidant activities of polysaccharides from roots of Arctium lappa L.. Hot air drying, vacuum drying and freeze drying methods polysaccharides from roots of Arctium lappa L. were all gray solid, non-starch polysaccharides and no polyphenols content. Freezing drying Arctium lappa polysaccharides had higher total sugar and protein. And the contents of total sugar and protein were (90.72±1.45)% and (2.41±0.17)%. …
Study On Microwave-Assisted Extraction And Antioxidation Of Polysaccharides From Water Chestnut,
2016
Collge of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541004, China
Study On Microwave-Assisted Extraction And Antioxidation Of Polysaccharides From Water Chestnut, Zhang Huixiang, Yang Shijun, Zeng Jin
Food and Machinery
The water chestnut as raw material, the extraction conditions of polysaccharide were studied by single factor and orthogonal experiment, antioxidant activity on polysaccharide from water chestnut was detected, respectively. The results showed that with distilled water as extraction solvent, extracting process of polysaccharide from water chestnut had microwave power of 600 W, solid-liquid ratio of 1∶15, extracting time of 3 min, under these conditions, the extraction rate of polysaccharide could reach 8.12%, and the polysaccharide purity could up to 83.2%. The polysaccharide from water chestnut had strong reduction power and scavenging ability to hydroxyl radicals in the range of 0.01～0.10 …
Comparing Antioxidant Activity Of Pepper Seeds Oil In Vitro Produced By Different Process,
2016
National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
Comparing Antioxidant Activity Of Pepper Seeds Oil In Vitro Produced By Different Process, Liu An, Luo Song, Li Qiguang, Yang Xindi, Xu Dandan, Xiao Wenjun
Food and Machinery
The antioxidant activity in vitro experimental model method is adopted, with control of Vc and VE, a comparative study of supercritical CO2 extraction and petroleum ether extraction and supercritical CO2 extraction after degumming and bleaching of three kinds of process technology for preparation of pepper seed oil antioxidant activity.The results show that the reduction ability of pepper seed oil and the hydroxyl radical, superoxide anion free radicals and H2O2 scavenging rate from high to low process followed by supercritical fluid extraction after degumming and bleaching, supercritical fluid extraction, petroleum ether extraction, DPPH free …
Separation And Purification Geraniol-Beta-D-Glycosidase By Chemical Synthesis,
2016
College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China
Separation And Purification Geraniol-Beta-D-Glycosidase By Chemical Synthesis, Cheng Dongwei, Yang Xihong, Xie Wancui, Gao Qian, Lei Sheng
Food and Machinery
In order to find an efficient and systematic way of producing and purifying geraniol glycosidase，an improved method of Koenigs-Knorr was gotten, which used the silicone to hold silver carbonate catalyst to improve the productivity and perfects the synthesis process, separating and purifying the crude sample by silica gel column chromatography(SGCC) and high performance liquid chromatography (HPLC) . The method of SGCC applies the thin plate chromatography to get the better flow matches which is the ethyl acetate and ethanol according to 50:1, 40:1, 30:1, but the HPLC selects water and acetonitrile which is to 45:55, each of the two flows …
Chitosan-Based Flocculation And Salt Induced Aqueous Two-Phase Extraction Of Procyanidins From Red Grape Seeds,
2016
College of Agriculture and Biotechnology, Hexi University, Zhangye, Gansu 734000, China; Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Zhangye, Gansu 734000, China
Chitosan-Based Flocculation And Salt Induced Aqueous Two-Phase Extraction Of Procyanidins From Red Grape Seeds, Zhang Xifeng, He Qian, Zhang Bin, Wang Minghui, Luo Guanghong
Food and Machinery
According to the recovery rate of procyanidins, the purification process of procyanidins from red grape seeds by chitosan flocculation was optimized by orthogonal test．After procyanidins in the ethanol aqueous extract solution of red grape seeds was separated into two phases by salts, the partition characteristics of it in two phases were studied. Chitosan flocculation was investigated, and the results were as follows. The optimum flocculation was obtained using 2 mL of chitosan with 20 mL ethanol solution of procyanidins at 35 ℃ and pH 4. The recovery rate of procyanidins reached to 95.62%. Then, the salts inducing aqueous two-phase extraction …
Preperation Of Feruloylated Saccharides From Corn Straw By Enzymatic Hydrolysis,
2016
The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, Jiangsu 214122
Preperation Of Feruloylated Saccharides From Corn Straw By Enzymatic Hydrolysis, You Mengzhu, Lu Jian, Cai Guolin
Food and Machinery
Multi-stage cyclone grinding can be used to change the physical structure of corn straw, which can be degraded easier by enzymes to release feruloylated saccharides. By the same enzymatic hydrolysis, the content of feruloylated saccharides released from multi-stage cyclone grinding corn straw increased by 3.34 fold than that without pretreatment. Commercial complex enzymes, such as Validase TRL, HSP 6000 BG, Rapidase Smart Clear, xylosidase and arabinfuranosidease were used to hydrolyze multi-stage cyclone grinding corn straw, and it showed that Validase TRL had the best effect, and the yield of feruloylated saccharides was 1.46 μmol/g, increased by 3.48 fold than that …
Technological Optimization Of The Preparation Of Corn Resistant Starch By Microwave-Enzymatic Method,
2016
College of Food Engineering, Jilin Agricultural Science and Technology College, Jilin, Jilin 132101, China
Technological Optimization Of The Preparation Of Corn Resistant Starch By Microwave-Enzymatic Method, Niu Chunyan, Tang Yuanfa
Food and Machinery
The corn starch was used to determine the optimum technological conditions of corn resistant starch by microwave-enzymatic method. The optimal conditions were got by orthogonal experiment analyses, and we found the content of resistant starch was highest and reached to 28.4%, when treated under the following conditions, i.e. 25% of Starch slurry mass fraction , 800 W of microwave power, 240 s of microwave heating time, and cooling storage for 20 h at 4 ℃. Our study might provide a new clue for the preparation of resistant starch and make benefit for the application for starch industry in the future.
Advances In Nrf2-Are-Mediated Flavonoids Against Oxidative Stress,
2016
College of Food Science and Technology, Hunan Agriculture University, Changsha, Hunan 410128, China
Advances In Nrf2-Are-Mediated Flavonoids Against Oxidative Stress, Li Tao, Deng Fangming, Qin Si, Wu Yanyang, Shan Yang, Li Qili
Food and Machinery
Oxidative stress has very close relationship with human health, and human organsviolated by oxidative stress is likely to cause a series of physical diseases，such as headache, muscle aches, arthritis, atherosclerosis, diabetes, heart disease, cancer and neurodegenerative problem. However the flavonoids which widely exist in fruits, vegetables and other plant foods have a very significant role in the fight against oxidative stress, this is largely because it can activate the Nrf2-ARE which is the critical defense signaling pathway and regulating many antioxidant gene expression. In this paper, introduced the activation of Nrf2-ARE signaling pathway, the related signaling pathways of regulating Nrf2-ARE …
Research Progress Of Open Food Refrigerated Display Cabinets,
2016
School of Energy and Power Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450002, China
Research Progress Of Open Food Refrigerated Display Cabinets, Wu Xuehong, Wang Chunxu, Li Weiping, Zhang Jun
Food and Machinery
Refrigerated display cabinets as the terminal device of the food cold chain logistics play an important role in ensuring the food quality and safety. In this paper a brief overview of recent progress is presented in the open food refrigerated display cabinets from the aspect of air curtain performance, the environment temperature and humidity, the structure optimization of the cabinet body, the problems of evaporator frosting and defrosting, the system energy saving and the application of phase change materials for cool storage, et al. Analyzes the related factors on velocity field and temperature field distribution of food refrigerated display cabinets, …
